Controller of an unmanned aerial vehicle



FIG. 1 is a top view of a controller of an unmanned aerial vehicle; and,

FIG. 2 is a side view thereof.

The broken lines present in FIG. 1 illustrate portions of the controller of an unmanned aerial vehicle that form no part of the claimed design. 

CLAIM The ornamental design for a controller of an unmanned aerial vehicle, as shown and described. 